Showerhead



FIG. 1 is a first perspective view of a showerhead showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a first side view thereof;

FIG. 4 is a second side view thereof;

FIG. 5 is a third side view thereof;

FIG. 6 is a fourth side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown represent portions of a showerhead and form no part of the claimed design. 

CLAIM The ornamental design for a showerhead, as shown and described. 